Home / 86,149,854.24-129,196,820.16-28,626,686.88

Finding the Fourth Proportional to 86,149,854.24, 129,196,820.16 and 28,626,686.88

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Solution

The fourth proportional to 86,149,854.24, 129,196,820.16 and 28,626,686.88 is: 42,930,739.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,149,854.24 : 129,196,820.16 = 28,626,686.88 : x
  2. Step 2: Convert to fraction form
    86,149,854.24/129,196,820.16 = 28,626,686.88/x
  3. Step 3: Cross multiply
    86,149,854.24x = 129,196,820.16 × 28,626,686.88
  4. Step 4: Simplify right side
    86,149,854.24x = 3,698,476,916,611,991.50
  5. Step 5: Solve for x
    x = 3,698,476,916,611,991.50/86,149,854.24
  6. Step 6: Final answer
    x = 42,930,739.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.